OtterSec audits blockchain systems, including layer-one networks, wallets, DeFi protocols, bridges, and related infrastructure.
Sigma Prime vs Re7 Labs
How do Sigma Prime and Re7 Labs compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Sigma Prime | Re7 Labs |
|---|---|---|
| What it is | Sigma Prime audits smart contracts, zero-knowledge systems, blockchain infrastructure, and off-chain code, and publishes security research. | Re7 Labs advises DeFi protocols and curates on-chain risk, using research and in-house tooling across digital asset ecosystems. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Sigma Prime and Re7 Labs.
Trail of Bits publishes security reviews, research, open-source tools, and talks covering software, blockchains, and AI systems.
Tulipa Capital curates DeFi risk strategies and provides dashboards and partner information for its on-chain finance work.
EverRise develops bridging and security applications for DeFi protocols across BNB Chain, Ethereum, Polygon, Fantom, and Avalanche.
Hexens audits blockchain systems and offers continuous threat exposure monitoring, alongside research on smart contract platform vulnerabilities.
DeFiSafety reviews process quality in decentralized finance and publishes its review criteria, documentation, and research resources.







